The scorching summer heat is hard on our bodies, our moods, and our electric bills. Don’t let the temperature get you down, though. These ten tips will help you keep cool even if it feels like the sun is out to get you.

Whenever your body heats up from physical activity or the hot weather outside, your internal air conditioner turns on and you begin to sweat. And remember, now that your air conditioner is using its coolant (your sweat), it is important to refill the tank — by drinking lots of H2O.

9. Keep Excessive Sweat at Bay

For many of us, sweat-inducing humidity is the worst part of summer. Even if you don’t have excessive sweat issues, you can get the sweating under control with a few tricks, like applying antiperspirant at night so it works more effectively and wearing breathable clothing materials, such as cotton.

8. Make a DIY Air Conditioner

Running the AC the entire summer gets expensive. You can make your own pseudo-air conditioner on the cheap with some basic materials, such as the styrofoam-and-fan version shown above. Don’t like the look of that? There are severalotherDIYcooling options to try.

3. Cool Your Car Down Quickly

This Japanese trick will get your oven-like car closer to bearable temperature. Roll down one window and open and close the opposite door a few times to cool that car down.

2. Stay Cool While You Sleep

Summer heat is worst when you’re trying to get some shuteye, because a higher body temperature makes it harder to fall asleep. If you feel like an insomniac in summer, cool your head with a special pillow like the Chillow, sleep on top of a wet sheet (aka the “Egyptian method”), or try one of these other strategies in our cool sleeping guide or this infographic.

1. Know Your Body’s Best Cooling Points

Finally, if you’re stuck in the heat and can’t find get to a cooler place, know your body’s best cooling points, e.g., your wrist and neck. By applying a ice cubes wrapped in a towel (or any other cold object) to these pulse points, you’ll cool down more quickly and effectively.

Lifehacker’s Weekend Roundup gathers our best guides, explainers, and other posts on a certain subject so you can tackle big projects with ease. For more, check out our Weekend Roundup and Top 10 tags.